DURABIS: Technology that Redefines Optical Media
Created from the words "durability" and "shield," DURABIS (pronounced DURE-UH-BIS) makes discs more durable and reliable by greatly enhancing resistance to scratches, smudges (particularly from fingerprints)and dust adherence.
To read more about how the DURABIS technology is maximizing the capabilities of optical media, please go to the Technology Page.
DURABIS: Maximize Optical Media Performance
Optimal operation of the laser beam must be ensured to maximize the performance of optical discs, such as DVDs and CDs. Scratches or smudges on a disc's recording layer (the layer irradiated by the laser beam) can cause the laser beam to incorrectly track its position. Incorrect laser beam tracking can result in recording and reading errors. In the worst cases, important data and content can be irretrievably lost.
Determined to mitigate this threat, we have dedicated ongoing efforts to the development of advanced hard coating technologies that can protect the recording surfaces of optical media products. TDK Life on Record's innovative DURABIS technology gives significantly greater durability to the recording surfaces of optical media products.
DURABIS: Making Bare Blu-ray Discs a Reality
Because Blu-ray Disc media offers considerably higher density recording on a disc with same physical dimensions as a DVD, precise laser operation is especially critical. This makes it essential to protect the recording surface of Blu-ray Disc media against scratches and smudges.
To protect the disc surface, the Blu-ray Disc media that's currently marketed in Japan is encased in a protective cartridge. DURABIS recording surface technology is an essentially component in realizing bare, cartridge-free Blu-ray Disc media.
An original technology, DURABIS is the result of our unyielding conviction that irreplaceable data and content must be safeguarded. DURABIS is certain to continue facilitating the evolution of optical discs with unprecedented capacities.
DURABIS technology continues to progress
DURABIS is a technology with the capability for continuous development, and can be expected to evolve further in its upcoming generations.
DURABIS consists of the following varieties, with characteristics matched to each type of disc.
* The examples of DURABIS coatings utilized here in are current as of July 2005.
DURABIS 1:
A hard coating designed for the wide environment of usage anticipated by general users. Presently it is utilized on DVDs.


DURABIS 2:
A hard coating designed for the smaller recording marks utilized with the blue laser disc. Presently it is utilized with the Blu-ray Disc.
DURABIS PRO:
A hard coating with professional specifications for professional-use discs. Presently it is utilized with the Professional Disc for broadcasting use.


The structure of each type of disc differs according to the type of format. Basically, each disc is formed of functional layers, such as reflective layer and recording layer, etc., above the substrate. The DURABIS coating is applied on the recording surface (the surface irradiated by the laser beam).
To form a DURABIS coating that protects each layer's function from deterioration, advanced technology is required.
In particular, for the DURABIS coating on discs utilizing the blue-violet laser, with its shorter wave length, a highly advanced thin-film spin coating technology has been adopted.
As future varieties of DURABIS having improved performance and matched to their specific function and purpose continue to evolve, these will be assigned new numbers or codes.

